What are the definitions of , ERP , CRM ?

ERP stands for Enterprise Resource Planning, while CRM stands for Customer Relationship Management.

While CRM attempts to enhance the relationship with customers, the primary goal of ERP is to improve and streamline internal business processes

   customer relationship management (CRM) is a part of ERP.

    While ERP is a Resource planning for the Enterprise Which Covers (Accounts & Finance, CRM, HR etc).

ERP  covers core functions of an enterprise like Finance & Accounts, Quality, Production/Manufacturing, Sales & distribution, projects, plant maintenance, material management etc. while CRM deals with customer relation ships part include but not limited to sales call to customer building, customer databases, Secondary/External sales analysis in all dimension (territory product, customer,Area, city, country, sales representative wise) it also inclides distributors , suppliers , event management and ROI.

An ERP system is a software program that pulls together all business information with the goal of facilitating the flow of this information easily to all its users. ERP provides an integrated view of core business process mostly in real-time, using common databases maintained by a database management system covering all business areas. An ERP system often reduces the amount of redundant data, saves time and cuts down the opportunity for errors. Information is also more easily accessible when needed also data is more easily turned into organized information that management can analyze and use for decision making.

CRM Is customer relationship management it has everything about your customer, name, DOB, address, contact details, nature of business etc etc

i agreed with the above answers.

If one wants to define ERP and CRM quantitatively

ERP impacts your bottomline

CRM impacts your Topline

Both need to meet the expectations to ensure the health of the Organization is strong

Enterprise resource planning, ERP, is a central system that standarizes and streamlines business processes across organisation by defining data models, E2E operational processes etc. aiding umbrella visibility in the organisation.

Customer Relationship Management, CRM, is a term referred to the  practices and technologies used to manage customer by carrying out customer information/data analysis thoughout the customer journey in order to enhance customer experience, relationships and achieve business improvement and customer retention.

Enterprise Resource Planning (ERP) and Customer Relationship Management (CRM) are two sides of the same profitability coin. ERP and CRM are similar in many ways, as they are both used to increase the overall profitability of a business. ERP and CRM systems use different approaches to increase profits. ERP focuses on reducing overhead and cutting costs. By making business processes more efficient, ERP reduces the amount of capital spent on those processes. CRM works to increase profits by producing greater sales volume. With a standardized repository of customer data, it’s easier for everyone, from executives to sales reps, to improve customer relations.

Thanks for invitation, and I am really sorry for my late, because I were  had a lot of work.

Agree with other experts as already answered well.