"JC Penney's Marriott code JCP is a retail corporate code. No FlyerTalk or Reddit thread discusses JCP verification incidents. Retail corporate codes at Marriott are among the lowest-scrutiny categories — JC Penney employees travel primarily for store visits to suburban/mall-adjacent markets where Marriott select-service properties dominate. These property types essentially never verify corporate codes. JC Penney's financial difficulties (multiple bankruptcies) mean active corporate travel has declined."

"I have never been asked and I have 51 nights in a Marriott this year using our corp rate."

"I've been given codes for several chains from family/friends who are entitled to have them. All have assured me they have never been asked to provide company ID when checking in. In fact I was told they give the codes out to visiting clients who won't have ID anyway."