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How To Fix WL491 - Operator '&' not allowed or blank in expression '& & &'
SAP Error Message - Details
Message type: E = Error
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Message class:
WL - Workflow: run-time messages -
Message number: 491
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Message text: Operator '&' not allowed or blank in expression '& & &'
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What causes this issue?
The operator &V1& is not supported.
How to fix this error?
The F4 input help in the Workflow Builder lists all operators which are
supported in the current release. Choose one of the operators allowed.Error message extract from SAP system. Copyright SAP SE.
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WL491- Operator '&' not allowed or blank in expression '& & &' ?
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Related SAP Error Messages
Click the links below to see the following related messages:WL490Operation '&' between data type '&' and '&' not allowed
What causes this issue? You have tried to compare two container elements or expressions or link them in an arithmetic operation (addition etc.). Howe...WL489Report back could not be repeated since work item no. & is blocked
What causes this issue? The system issues an error message and will not allow you to continue with this transaction until the error is resolved. Syst...WL492Comparison cannot be evaluated since element/expression '&' has no value
How to fix this error? Make sure that the workflow/work item variables involved or object attributes are assigned a value. Variables can be assigned ...WL493Multiline container element not allowed in this operation
What causes this issue? Expression '&V1&' &V2& '&V3&' contains a multiline container element &V4&...
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