eBay Error 21916923: Pictures cannot be edited because this listing has pending offers, or the maximum number of pictures has been reached.

Why this happens

Either 1) The listing has too many photos to add more, or — 2) A product photo was removed or edited, but eBay temporarily blocked this action to protect buyers who are actively engaged in purchasing your item (or to prevent changes from occurring immediately before the listing ends). Why eBay enforces this: eBay limits photo edits on listings with pending offers, and caps the number of photos. Either reason blocks the change. When it usually happens: It usually appears when adding photos to a listing that already has 12, or editing photos while offers are open.

How to fix it

This error in other languages

German: Bilder können nicht bearbeitet werden, da für dieses Angebot ausstehende Preisvorschläge vorliegen oder die maximale Anzahl an Bildern erreicht ist. French: Les photos ne peuvent pas être modifiées, car cette annonce a des offres en attente ou le nombre maximum de photos a été atteint. Italian: Le foto non possono essere modificate perché questa inserzione ha Proposte d'acquisto in sospeso o è stato raggiunto il numero massimo di foto. Spanish: Las fotos no se pueden modificar porque este anuncio tiene ofertas pendientes o se ha alcanzado el número máximo de fotos.