How To Fix FL388 - Only standard tables are permitted in RFC

FL388 - Overview

• Message type: E = Error

• Message class: FL - Function Builder messages

• Message number: 388

• Message text: Only standard tables are permitted in RFC

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FL388 - Only standard tables are permitted in RFC ?

  The SAP error message FL388 ("Only standard tables are permitted in RFC") typically occurs when you are trying to use a non-standard table in a Remote Function Call (RFC) context. This error is common when working with RFC-enabled function modules that are expected to interact with standard SAP tables.
  
  Cause:
  
  Non-Standard Tables: The primary cause of this error is the use of custom or non-standard tables in the parameters of an RFC-enabled function module. SAP restricts the use of non-standard tables in RFC calls to ensure data integrity and compatibility.
  Table Type: If you are trying to pass a table type that is not recognized as a standard SAP table, this error will be triggered.
  Function Module Definition: The function module may be incorrectly defined, or the parameters may not be set up to handle non-standard tables.
  
  
  Solution:
  
  Use Standard Tables: Ensure that you are using only standard SAP tables in your RFC-enabled function module. If