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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 9c2eebc4-dcd5-4b85-8113-90772d818900
26 lines
1.4 KiB
Markdown
26 lines
1.4 KiB
Markdown
---
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bc-version: [20..]
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domain: privacy
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keywords: [getlasterrortext, error, strsubstno, telemetry, customer-data, attachment]
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technologies: [al]
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countries: [w1]
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application-area: [all]
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---
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# Treat `GetLastErrorText()` as potential customer content
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## Description
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`GetLastErrorText()` can contain customer content such as field values, record keys, and file names. When it is passed as a substitution value to an `Error` whose first argument is a `Label` or `TextConst`, the label supplies the Error method trace telemetry message. If `StrSubstNo` or concatenation makes `GetLastErrorText()` part of the first argument, the actual dynamic string is not emitted as that telemetry message; telemetry uses generic guidance instead.
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## Best Practice
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Use a generic label when the user does not need the underlying detail. If showing the detail is appropriate, put `%1` in a label and pass `GetLastErrorText()` as a separate argument. This preserves a useful static telemetry message while keeping the dynamic value out of the telemetry message field.
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See sample: `getlasterrortext-customer-content-in-errors.good.al`.
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## Anti Pattern
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`Error(StrSubstNo(AttachmentFailedErr, GetLastErrorText(true)))` or `Error(AttachmentPrefixErr + GetLastErrorText(true))`. Both lose the static first argument and trigger AA0231; neither causes the composed text to be logged verbatim as the Error telemetry message.
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See sample: `getlasterrortext-customer-content-in-errors.bad.al`.
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