The EUSR shall contribute to the unity, consistency and effectiveness of the Union's action and shall help ensure that all Union instruments and Member States' actions are engaged consistently, to attain the Union's policy objectives. The activities of the EUSR shall be coordinated with those of the Commission, as well as those of other EUSRs active in the region, as appropriate. The EUSR shall provide regular briefings to Member States' missions and Union delegations.

In the field, close liaison shall be maintained with the Heads of Union delegations in the region and Member States' Heads of Mission. They shall make every effort to assist the EUSR in the implementation of the mandate. The EUSR shall also liaise with international and regional actors in the field, and in particular maintain close coordination with the High Representative in BiH.

In support of Union crisis management operations, the EUSR, with other Union actors present in the field, shall improve the dissemination and sharing of information by those Union actors with a view to achieving a high degree of common situation awareness and assessment.