Message Oracle PGA-20921 - buffer overflow on receive: requested number bytes, received number bytes

ERROR	buffer overflow on receive: requested number bytes, received number bytes
CAUSE	The remote transaction program sent bytes of data when the gateway was expecting to receive only bytes.
ACTION	Check that the PGDL and COBOL record descriptions used to define the transaction to PGAU are in sync with the transaction program and that the PL/SQL TIP was generated by PGAU using the correct definitions. If modifications have been made to the generated PL/SQL code, check that they are correct.