Do not modify private custom listings

• Recommendation: Do not modify private custom listings. Instead, if you encounter an issue with a private custom listing, delete it or discontinue its use, and create a new one.

• Rationale: Private custom listings become unreliable when they are created ad hoc and then modified.

• Additional information: Private custom listings are intended for individual, short-term use. We recommend that you use the Test Listing feature when you build a custom listing.