Office supply chain Staples and the U.S. Postal Service are ending a pilot program to put postal counters inside Staples stores that would have been staffed by non-union Staples employees. The decision comes just a few days after the country’s biggest teachers union called for a boycott of Staples, just as the lucrative back-to-school buying season was beginning.

There had also been protests outside some stores recently.

There are articles about the cancellation of the program in The Wall Street Journal and on Reuters.