Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a valid customer
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a valid customer" is correct and usable in written English.
It can be used when referring to a customer who meets certain criteria or requirements, often in a business or service context. Example: "To access the premium features, you must be a valid customer with an active subscription."
✓ Grammatically correct
News & Media
Wiki
Alternative expressions(1)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
2 human-written examples
"It is almost impossible to differentiate between a request being sent from a malicious computer and one from a valid customer".
News & Media
They will exchange it or offer you a full refund HMV Items purchased in error or unwanted gifts can be returned for exchange provided they are returned in perfect condition, accompanied by a valid Customer Advice Note and within 21 days of receipt.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
Issue valid customer credit timely to avoid unnecessary transaction disputes and associated chargeback fees.
Wiki
To allow for a valid comparison between customers with and without social media interactions, we report the specific costs of these interactions separately, again using data from internal accounting.
Science
An invalid number returned nothing, a valid number returned a customer email address.
News & Media
"If there is a real dispute and the rental customer has a valid argument, mostly they'll work with the customer," Abrams said.
News & Media
The action by TfL is denying London customers a valid choice within the market which has limited options.
News & Media
A RiteAid spokeswoman, Ashley Flower, said by e-mail that store pharmacists can, and often do, check pricing for customers with discount cards, if the customer has a valid prescription.
News & Media
The program will be available to any U.S. customer with a valid EBT card – the card that's commonly used to disburse funds for a number of government assistance programs, including Temporary Assistance for Needy Families (TANF), Supplemental Nutrition Assistance Program (SNAP), and Women, Infants, and Children Nutrition Program WICChildren Nutrition Program WIC
News & Media
For the same price of $5.99 per month, Amazon offers Prime memberships to any U.S. customer with a valid EBT card – the card that's used to disburse funds for assistance programs like Temporary Assistance for Needy Families (TANF), Supplemental Nutrition Assistance Program (SNAP), and Women, Infants, and Children Nutrition Program WICChildren Nutrition Program WIC
News & Media
Customers with a valid doctor's letter may request one of the bamboo-bound menus kept behind the counter, which list available strains of pot, some of them requiring a "donation" of seventy-five dollars per gram.
News & Media
Expert writing Tips
Best practice
When using the phrase "a valid customer", ensure the criteria for validity are clearly defined and understood within the specific context. For example, specify what documentation or information is needed to qualify as "a valid customer".
Common error
Avoid assuming that the requirements for being "a valid customer" are universally understood. Always explicitly state the criteria to prevent confusion and ensure compliance.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a valid customer" functions as a descriptive phrase, modifying the noun "customer" to specify that the customer meets certain criteria or requirements. This aligns with Ludwig's identification of the phrase as correct and usable.
Frequent in
News & Media
60%
Wiki
20%
Science
20%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "a valid customer" is a grammatically correct and usable phrase in written English, as confirmed by Ludwig. It functions as a descriptive phrase to specify that a customer meets certain criteria. While its frequency is relatively rare, it is appropriate in various contexts, particularly in news, media, and professional settings. When using the phrase, it is crucial to clearly define the criteria for validity to avoid ambiguity. Consider using alternative phrases such as "an eligible client" or "a qualified customer" depending on the specific context and desired emphasis. Ensure clarity and avoid assumptions about what constitutes a valid customer to prevent misunderstandings.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
an eligible client
Focuses on meeting specific requirements or qualifications to be considered a client.
a qualified customer
Emphasizes that the customer fulfills certain criteria or conditions.
a verified customer
Highlights the confirmation of a customer's identity or credentials.
an authorized customer
Implies the customer has been granted permission or access.
a legitimate customer
Stresses the authenticity and genuineness of the customer.
a bona fide client
Uses a more formal term to indicate a genuine and sincere client.
a recognized customer
Highlights that the customer is officially acknowledged or identified.
a registered customer
Indicates the customer has completed a registration process.
an approved customer
Suggests the customer has been officially sanctioned or endorsed.
a confirmed client
Focuses on the affirmation of the client's status or details.
FAQs
What does it mean to be "a valid customer"?
Being "a valid customer" typically means meeting specific requirements set by a business or service provider, such as having an active account, a valid form of payment, or meeting eligibility criteria.
What can I say instead of "a valid customer"?
You can use alternatives like "an eligible client", "a qualified customer", or "a legitimate customer" depending on the context.
How do I ensure I'm considered "a valid customer"?
To ensure you're considered "a valid customer", carefully review and meet all the requirements specified by the business or service provider. This might involve providing necessary documentation, maintaining an active account, or adhering to their terms of service.
Why is it important to be "a valid customer"?
Being "a valid customer" ensures you can access the full range of products, services, and benefits offered by a business or service provider. It also helps prevent fraud and ensures fair practices.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested