Message type: E = Error
Message class:  /IWBEP/CM_MGW_RT -  
Message number: 155
Message text: Characters 'SPACE' and '/.,()'"=_%*-+_¯' are not allowed
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The SAP error message /IWBEP/CM_MGW_RT155 indicates that certain characters are not allowed in the context where you are trying to use them. This error typically occurs in the context of OData services or when working with the SAP Gateway framework, particularly when dealing with query parameters or entity keys.
Cause: The error is triggered when you attempt to use characters that are not permitted in the context of the operation you are performing. The specific characters mentioned in the error message (SPACE, /.,()'"=_%*-+_¯) are restricted in certain fields or parameters, such as: Query parameters in OData requests Entity keys Filter expressions
Solution: To resolve this error, you can take the following steps: Check Input Values: Review the input values you are sending in your OData request. Ensure that none of the restricted characters are included in the parameters, entity keys, or filter expressions. Encode Special Characters: If you need to include special characters in your request, consider URL encoding
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