How To Fix /ECRS/BL_TD109 - If the transaction type is blank, you cannot enter a supplementary unit

/ECRS/BL_TD109 - Overview

• Message type: E = Error

• Message class: /ECRS/BL_TD -

• Message number: 109

• Message text: If the transaction type is blank, you cannot enter a supplementary unit

Self-Explanatory Message

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/ECRS/BL_TD109 - Details

• The SAP error message /ECRS/BL_TD109 indicates that there is an issue with the transaction type being blank when trying to enter a supplementary unit in a transaction. This error typically arises in the context of logistics or inventory management within SAP, particularly when dealing with material movements or inventory adjustments.
  
  Cause:
  
  Blank Transaction Type: The primary cause of this error is that the transaction type field is not populated. In SAP, transaction types are essential for defining how a particular transaction should be processed.
  
  Configuration Issues: There may be configuration settings in the system that require a transaction type to be specified for certain operations, especially when supplementary units are involved.
  Data Entry Error: Users may inadvertently leave the transaction type field blank during data entry.
  
  
  Solution:
  
  Check Transaction Type: Ensure that the transaction type is correctly specified in the relevant field before attempting to enter a supplementary unit. This may involve selecting the appropriate transaction