How To Fix WER237 - Target table must be of type table

SAP Error Message - Details

• Message type: E = Error

• Message class: WER - Messages for the package WER

• Message number: 237

• Message text: Target table must be of type table

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message WER237 - Target table must be of type table ?

  SAP Error Message:
  
  WER237 - Target table must be of type table
  
  Cause:
  This error occurs when you are trying to assign or use a target object in a data transfer or mapping process (such as in LSMW, BAPI, or other data migration tools) that expects a table type but the provided target is not defined as a table. In other words, the system expects the target structure to be a table (internal table), but the object you provided is either a single structure or a different data type.
  Common scenarios include:
  
  In LSMW (Legacy System Migration Workbench), when defining the target structure for a step, the target must be a table type if the process expects multiple records.
  In ABAP programs or BAPI calls, when passing parameters, the target parameter is expected to be a table but is defined as a structure or scalar.
  
  
  Solution:
  
  
  Check the target object definition:
  
  Verify that the target object (structure or table) is defined as a table type in the ABAP Dictionary (SE11) or in the program.
  If it is a structure, convert or redefine it as a table type (an internal table).
  
  
  
  Adjust the data mapping or parameter assignment:
  
  If you are using LSMW or a similar tool, ensure that the target structure is assigned as a table type.
  In ABAP code, if the target parameter is expected to be a table, declare it as an internal table, e.g.:
  DATA: lt_target TYPE TABLE OF <structure>.
  
  When calling function modules or BAPIs, check the interface and pass the correct table parameter.
  
  
  
  Review the process step:
  
  In LSMW, during the step where you specify the target structure, make sure you select a table type object.
  If you are using a recording or batch input, ensure the target is correctly defined.
  
  
  
  
  Related Information:
  
  LSMW: When defining the target structure, the system requires the target to be a table if multiple records are to be processed.
  ABAP Dictionary (SE11): Table types are defined as table types or table of structures.
  Function Modules / BAPIs: Always check the parameter types in the function module interface.
  Debugging: Use debugging to check the data types of the variables or parameters being passed.
  
  
  Summary:
  
  Error WER237 means the target must be a table type but is not.
  Fix: Define or use a table type for the target.
  Check: Data definitions, LSMW target structure, ABAP code parameter types.
  
  
  If you provide the exact context (e.g., LSMW step, ABAP code snippet, BAPI call), I can help you with a more specific solution.