A botanical sample can arrive with a promising appearance and a complete-looking document pack, yet still leave a basic purchasing question unanswered: do these records describe the same material? A specification may name one plant part, the sample label another, while the certificate of analysis refers to a batch that is not available for supply. Resolving those discrepancies before purchasing requires a traceable decision process, not simply a cleaner set of PDFs.

Give each record a defined purpose

Start by separating three things that are easily treated as interchangeable. The sample is a physical item offered for a stated evaluation. The specification describes the agreed material and acceptance criteria. The batch document, including a certificate of analysis where provided, reports information associated with an identified batch. A generic specification cannot establish that a particular sample represents the lot proposed for shipment.

Create a short record linking the supplier, product reference, sample identifier, supplier batch number, receipt date and purpose of evaluation. Record whether the supplier describes the sample as a development sample, an earlier production lot or a sample from the proposed supply lot. These distinctions do not necessarily disqualify a sample, but they change what a buyer can reasonably conclude from evaluating it.

Check four fields before comparing results

First, compare the identity description, including the botanical name and plant part. A shared common name is not a sufficient reconciliation when the underlying descriptions differ. WHO guidance on herbal monographs identifies botanical naming, plant part and material state or preparation as important elements of defining the material.1 For the purchasing record, write the agreed description explicitly rather than relying on an abbreviation understood by only one party.

Second, compare the supplied form. Whole material, cut material, powder and extract are distinct descriptions. If processing, carriers or other ingredients are relevant to the proposed material, ask the supplier to identify them in the applicable records. Do not silently interpret an extract specification as covering a powder simply because both documents carry the same product name.

Third, reconcile the sample identifier with the batch identifier. They may legitimately be different codes, but there should be an explicit link explaining which sample came from which lot. A courier reference identifies a delivery; it does not, by itself, explain the source of the material inside it. Ask for the relationship rather than inventing one from similar-looking numbers.

Fourth, identify the document version. Record the specification number, revision and effective date, alongside the date and identifier of the batch document. When a newer specification exists, ask which version governed the reported assessment and which version will govern the purchase. A later date does not automatically make a document applicable to an earlier sample.

Open one discrepancy record

Keep the original files and label photographs. Record each conflicting field, its source and the question that must be answered. Assign one internal owner to coordinate purchasing and quality review. This avoids the situation in which a salesperson receives one explanation, a quality reviewer receives another and neither sees the complete exchange.

Ask specific questions: Which plant part was used in this sample? Which batch does this certificate describe? Was revision three applicable when this batch was assessed? Request a written response from the responsible supplier contact, supported by the underlying record where needed. An informal explanation can help investigation, but it should not overwrite the original evidence or substitute for an authorized correction.

Resolve the discrepancy in a controlled sequence

First, identify the decision that depends on the missing information and keep that decision on hold. A team might continue discussing packaging or delivery schedules while withholding sample acceptance or the purchase commitment. Make that boundary visible so that commercial progress is not mistaken for technical approval.

Second, establish the nature of the discrepancy. It could be a transcription error, an outdated attachment, a sample from a different batch or a substantive difference in the material offered. These possibilities require different responses. The buyer should not choose the most convenient explanation merely because production dates are approaching.

Third, obtain a controlled correction where an error is confirmed. The issuing party should identify what changed and why, with a revision or replacement reference that preserves the connection to the original. A corrected certificate should not imply that new testing occurred unless it did. Retain the superseded document and the explanation with the purchasing record.

Fourth, ask the quality reviewer whether documentary clarification is sufficient for the decision at hand. A change in material description, uncertainty about the sample’s source or an unexplained batch substitution may require a replacement sample, additional evidence or testing. Define that requirement before asking for another document, so the supplier understands the unresolved question.

Finally, record the disposition: resolved for the stated purchasing decision, rejected or still on hold. Name the reviewer, date the decision and identify any conditions that remain. Closing an email exchange is not the same as closing the discrepancy. The final record should explain why the evidence now supports the particular decision being made.

A hypothetical example with two batches and two revisions

Consider a fictional purchase of a botanical leaf powder. Sample S-17 is labelled as coming from lot L-240. The accompanying certificate names lot L-251, and the specification attached to the quotation is revision two. A later supplier email attaches revision three and describes the product only as botanical powder, omitting the plant part. None of these fictional identifiers refers to an actual supplier or transaction.

The buyer records three questions: which lot supplied S-17, whether the intended material is leaf-only, and which specification revision applies. The supplier might explain that S-17 came from an earlier evaluation lot while L-251 is the available shipment lot. That would explain the different numbers, but it would not demonstrate that the buyer’s evaluation of S-17 establishes the acceptability of L-251.

The quality reviewer would then decide what evidence is needed for the offered lot, while the supplier clarifies the description and applicable revision. The purchasing record remains conditional until those questions are resolved. This example deliberately stops short of an acceptance outcome: the missing information, sampling basis and assessment requirements determine the next step, not the neatness of the replacement paperwork.

Keep document review separate from material release

Aligned records do not establish botanical identity, purity or safety. WHO’s herbal monograph guidance describes identification and quality testing as distinct technical activities; its identification section also explains why material form affects suitable examination methods.1 Matching names and batch numbers is therefore a way to organize the evidence, not a substitute for evaluating the material itself.

Sampling deserves its own attention. WHO’s quality-control manual describes representative samples and retention of reference material within its sampling approach.2 A buyer should establish the basis on which a sample represents a lot and have qualified personnel determine appropriate sampling and testing. A favorable evaluation of an unidentified sample cannot answer that question.

These WHO publications concern herbal materials and medicines; they are technical background, not a jurisdiction-specific food compliance checklist. The proposed workflow does not replace applicable requirements, supplier qualification, risk assessment, testing or quality release. At receipt, the delivered lot and its records still need assessment under the buyer’s established procedures.

The practical goal is a purchasing file another reviewer can follow without reconstructing weeks of conversation. It should show what was offered, what was sampled, what disagreed, how the discrepancy was investigated and what remains conditional. That clarity supports a better purchasing decision while keeping the limits of the evidence visible.