I do not think we in the ELCA need particular "agreements" to be in fellowship with other Lutheran churches or to have their clergy preach in our congregations.
That's interesting. So what meaning does being in "altar and pulpit" fellowship have, then? Is it OK for them to preach as long as they don't preside or something?
Here's what the constitution says:
8.74. This church, in accord with constitutional provision 2.05., acknowledges
as one with it in faith and doctrine all churches that accept the
teaching of the Unaltered Augsburg Confession and understands that
altar and pulpit fellowship with congregations and other entities of
such churches may be locally practiced. Local practice of altar and
pulpit fellowship, in accord with churchwide constitutional provision
2.05., is subject to the approval of the Synod Council, upon endorsement
by the synodical bishop. Notice of such approval is to be given
to the presiding bishop as the chief ecumenical officer of the
Evangelical Lutheran Church in America.