share button has disaappeard for lightroom collection

"I create the collection , then go to grid view and click Share in the top right hand corner. HOWEVER, the "share" button has dissapeared. How do I share a collection from lightroom classic?"

After creating a collection in LR Classic you need to click on the double-arrow icon to the left of the collection name. This will Sync the collection to the Web. Once you've done that you will see a 'Make Public' button in the upper right-hand corner of the Grid view along with the share link URL.

A better way to do this is to access the synced collection album at lightroom.adobe.com and click on the face icon in the upper right-hand corner. You can then access and set specific settings as to what your clients can see and do.

This is the LrC, the Traditional version of Lr, forum. It sounds like you are asking about either the Web interface, Lr Web, or the newer Cloud Centric version called Just Lightroom.

Please reply with the exact version number (and Name) of the Lr version you are using so your post can be moved to the proper forum.