How To Fix WTY801 - Format in IDoc field & (&) not permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: WTY - Warranty processing

• Message number: 801

• Message text: Format in IDoc field & (&) not permitted

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WTY801 - Format in IDoc field & (&) not permitted ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WTY801 - Format in IDoc field & (&) not permitted
  
  Cause:
  This error occurs when an IDoc field contains characters or formatting that are not allowed according to the IDoc's data type or format specifications. Specifically, the message indicates that the format of the data in a particular IDoc segment field is invalid because it contains characters that are not permitted.
  Common causes include:
  
  The field contains special characters or symbols that are not allowed (e.g., parentheses ( or ) or other non-alphanumeric characters).
  The field length exceeds the defined length.
  The data does not conform to the expected data type (e.g., numeric field contains alphabetic characters).
  The field contains control characters or invalid formatting.
  
  
  Explanation of the Message Text:
  
  The first & is a placeholder for the field name or segment name.
  The second & is a placeholder for the invalid character or format found.
  
  For example, the message might read:
  
  WTY801 Format in IDoc field E1EDK01 (PO_NUMBER) ( ) not permitted
  
  indicating that the field PO_NUMBER in segment E1EDK01 contains parentheses which are not allowed.
  
  Solution:
  
  
  Check the Data Source:
  
  Identify the source of the data that populates the IDoc field. Verify if the data contains invalid characters or formatting.
  
  
  Validate Data Before IDoc Creation:
  
  Implement validation logic in the data extraction or IDoc creation program to ensure that only permitted characters are passed to the IDoc fields.
  
  
  Cleanse or Transform Data:
  
  Remove or replace invalid characters before the IDoc is generated. For example, strip out parentheses, special symbols, or convert data to the correct format.
  
  
  Check IDoc Segment and Field Definitions:
  
  Review the IDoc segment definitions (using transaction WE30 or WE31) to confirm the allowed data types and lengths for the problematic field.
  
  
  Adjust Mapping or Conversion Routines:
  
  If the IDoc is generated via mapping (e.g., in SAP PI/PO or middleware), adjust the mapping rules to filter out or correct invalid characters.
  
  
  Reprocess the IDoc:
  
  After correcting the data, regenerate or reprocess the IDoc.
  
  
  
  Additional Information:
  
  
  Transaction Codes:  
  
  WE02 / WE05 - Display IDocs to identify the problematic IDoc and field.  
  WE19 - Test tool for IDoc processing and simulation.  
  WE30 / WE31 - IDoc segment and structure definitions.
  
  
  
  Related Notes and Documentation:  
  
  SAP Notes related to IDoc data validation and character set issues.  
  Check for any system-specific restrictions on allowed characters in IDoc fields.
  
  
  
  Common Fields Affected:
  
  Fields like document numbers, customer/vendor IDs, or free-text fields often cause this error if they contain unexpected characters.
  
  
  
  Summary:
  The WTY801 error indicates invalid formatting or characters in an IDoc field. To resolve it, identify and cleanse the data causing the issue, ensure compliance with IDoc field definitions, and validate data before IDoc creation.
  
  If you provide the exact IDoc segment and field name, I can help you with more specific advice!