Apparatus, methods, and computer-readable media for performing random access procedures based on two-step random access channel procedures and four-step random access channel procedures are disclosed herein. An example method for wireless communication at a User Equipment (UE) includes determining whether to perform a two-step random access channel (RACH) procedure or a four-step RACH procedure. The example method also includes generating a random access message based on the determining, wherein the random access message is one of a first random access message including a preamble when the determining is to perform the four-step RACH procedure or a second random access message including the preamble and a payload when the determining is to perform the two-step RACH procedure. The example method also includes performing a RACH attempt by transmitting, to a base station, the random access message.
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