1. The Commission is empowered to adopt delegated acts in accordance with Article 49 to supplement this Regulation with regard to the obligations laid down in Articles 5 and 6. Those delegated acts shall be based on a market investigation pursuant to Article 19 that has identified the need to keep those obligations up to date in order to address practices that limit the contestability of core platform services or that are unfair in the same way as the practices addressed by the obligations laid down in Articles 5 and 6.

2. The scope of a delegated act adopted in accordance with paragraph 1 shall be limited to:

(a) extending an obligation that applies only in relation to certain core platform services, to other core platform services listed in Article 2, point (2);

(b) extending an obligation that benefits certain business users or end users so that it benefits other business users or end users;

(c) specifying the manner in which the obligations laid down in Articles 5 and 6 are to be performed by gatekeepers in order to ensure effective compliance with those obligations;

(d) extending an obligation that applies only in relation to certain services provided together with, or in support of, core platform services to other services provided together with, or in support of, core platform services;

(e) extending an obligation that applies only in relation to certain types of data to apply in relation to other types of data;

(f) adding further conditions where an obligation imposes certain conditions on the behaviour of a gatekeeper; or

(g) applying an obligation that governs the relationship between several core platform services of the gatekeeper to the relationship between a core platform service and other services of the gatekeeper.

3. The Commission is empowered to adopt delegated acts in accordance with Article 49 to amend this Regulation with regard to the list of basic functionalities identified in Article 7(2), by adding or removing functionalities of number-independent interpersonal communications services.

Those delegated acts shall be based on a market investigation pursuant to Article 19 that has identified the need to keep those obligations up to date in order to address practices that limit the contestability of core platform services or that are unfair in the same way as the practices addressed by the obligations laid down in Article 7.

4. The Commission is empowered to adopt delegated acts in accordance with Article 49 to supplement this Regulation in respect of the obligations in Article 7 by specifying the manner in which those obligations are to be performed in order to ensure effective compliance with those obligations. Those delegated acts shall be based on a market investigation pursuant to Article 19, which has identified the need to keep those obligations up to date in order to address practices that limit the contestability of core platform services or that are unfair in the same way as the practices addressed by the obligations laid down in Article 7.

5. A practice as referred to in paragraphs 1, 3 and 4 shall be considered to limit the contestability of core platform services or to be unfair where:

(a) that practice is engaged in by gatekeepers and is capable of impeding innovation and limiting choice for business users and end users because it:

(i) affects or risks affecting the contestability of a core platform service or other services in the digital sector on a lasting basis due to the creation or strengthening of barriers to entry for other undertakings or to expand as providers of a core platform service or other services in the digital sector; or

(ii) prevents other operators from having the same access to a key input as the gatekeeper; or

(b) there is an imbalance between the rights and obligations of business users and the gatekeeper obtains an advantage from business users that is disproportionate to the service provided by that gatekeeper to those business users.