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Field lengths, defaults, and validation
The question “How long can this field be?” has several parts. A browser may limit typing, the server may reject or transform an input, and the database may impose a separate storage limit.
Three layers
| Layer | What it proves | What it does not prove |
|---|---|---|
| Interface | A declared maximum, minimum, increment, required state, or available option in that control | That imports or API requests apply the same restriction |
| Service validation | The checks performed when that operation receives a request | That every alternate operation uses the same checks |
| Storage | Stored type, nullability, numeric precision, explicit column length, and uniqueness | The human business purpose or effective form default |
An extracted screen entry reports only constraints it can identify literally. Not explicitly declared means that this layer does not state the constraint; it does not mean unlimited input is supported. A server request-size limit can still apply even where text has no small fixed character limit.
Character length and formatting
Check whether spaces are trimmed, codes are normalized, case changes, or generated identifiers replace blank input. Arabic characters, combining marks, and emoji can be counted differently by browser string lengths and storage rules; a precise multilingual boundary requires testing.
For example, the reviewed item creation operation trims the item name and rejects an empty result. It does not provide a fixed character maximum in that validation. The new price-list code control in Item Master declares a 32-character limit, but that does not establish the limit of Item Code, which is a different field.
Decimal values
A decimal column with precision p and scale s can represent p total digits, with s after the decimal point. The maximum integer-digit count is p − s. Display decimals, input increments, tax rounding, and stored precision are separate concepts.
Company Amount Decimal Places accepts integers from 0 to 4 in the reviewed creation service. This configuration must not be described as the precision of every monetary or quantity column.
Default versus saved value
A default can come from the screen, company configuration, a parent record, the service, or storage. Later sources may override earlier ones. The value visible when creating a record is not necessarily the value returned when a field is omitted from a direct request.
The reviewed Item creation service supplies stock tracking for a non-service item when no explicit choice is supplied, then applies provided behavior flags. This differs from treating the database default as the operational answer. Verify the saved Stock Tracked value rather than inferring it from the item type name.
Required versus conditionally required
A field can be optional in storage but necessary for a particular action. An item may be saved before every posting-related reference is configured, yet a sale or receipt may fail without required setup. “Required to save” and “required to operate” should be documented separately.
How unresolved facts are handled
The academy should record an unknown explicitly and retain an internal evidence task. It should never guess a maximum of 50, 100, or 255 characters because such limits are common elsewhere. The coverage register tracks the work needed to reach full field-level verification.